The European Union strives to create sustainable, low-carbon economies; therefore, energy policies of all member states should move towards renewable energy sources (RES). That concerns also the so-called new EU member states. These countries, on the one hand, are characterized by significant historical similarities in terms of post-communist legacy and adopted development strategies linked with the EU membership, and on the other hand, by significant social, economic and environmental differences resulting from different transformation and development paths and conditions. The question remains how the selected countries should cope with actions in the field of national energy transformations to confront the multiple challenges linked to assuring a significant level of sustainable development. In order to be successful, it is necessary to conduct an effective and rapid changes in the energy industry, which should be preceded by an analysis of the differentiation of countries in terms of their potentials. The results of such analyses should be helpful in selecting the most appropriate strategies for transformation of the described industry. Therefore, the purpose of the article is to assess the new EU member states for RES diversification and identify similar subgroups of countries using cluster analysis, taking into account the percentage share of individual renewable energy sources in total renewable energy production. This was done for the years 2010, 2015 and 2019 which should allow us to demonstrate the differences between them as a group and also reveal changes recorded over time for a single country. Ward’s method was used for the analysis. The presented approach to the analysis of energy production enabled the acquisition of new knowledge in this field and supported the assessment of the current state of RES. The results obtained can be used in countries of comparable specificity to undertake activities of similar nature in relation to internal energy production, technological development or common energy policy.

Wydawnictwo Naukowe Uniwersytetu Szczecińskiego

This book is a multifaceted examination of the nature of inequalities in CEE countries. While progress has been made, significant inequalities persist, and a deeper understanding of these challenges is essential to fostering meaningful action towards a more inclusive and prosperous future. Written by scholars from two leading higher education institutions in Poland – the Nicolaus Copernicus University in Toruń and the SGH Warsaw School of Economics – this comprehensive research monograph examines the disparities that shape the region and offers a nuanced understanding of their origins, manifestations, and consequences. Moving beyond simplistic narratives of post-communist transformation, the book analyses the contemporary realities of CEE, exploring socioeconomic, technological, and infrastructural disparities. It investigates inequalities in income, healthcare, education, energy access, public transport, innovation, and digital inclusion, revealing the vast differences within and between countries. The book is an essential resource for anyone who wants to understand the complex realities of Central and Eastern Europe and explore the root causes of inequality in the region. It also includes policy recommendations on how to bridge inequalities to promote equal opportunities for various stakeholders. Combining rigorous research with accessible language, the book provides an overview of the challenges and opportunities ahead and will appeal to those interested in the future of the region, from researchers, academics, and students to policymakers. <!----> <!----> <!----> <!---->